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Old 09-29-2005, 15:01   #1 (permalink)
pepe256
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poor mileage 86 740 gle

no vacuum leaks and ive used someconcentrated fuel injector cleaner still
no improvement its not running rich or theres not any smoke comeing out of
tailpipe really anyother things that could be wrong?

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Old 09-29-2005, 16:01   #2 (permalink)
jg
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Re: poor mileage 86 740 gle


"pepe256" <stefanarnold@comcast.net> wrote in message
news:cc54a5963f69202ea4af2f4041856a57@localhost.talkaboutautos.com...
> no vacuum leaks and ive used someconcentrated fuel injector cleaner still
> no improvement its not running rich or theres not any smoke comeing out of
> tailpipe really anyother things that could be wrong?
>

Plenty, blocked or leaking exhaust or ignition timing are possible
preliminary suspects. It has been suggested (though I haven't noticed
myself) that with current high petrol prices and supply problems, there
might be some adulteration. On that subject, has anyone heard of using small
amounts of acetone to improve engine performance?


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Old 09-29-2005, 16:01   #3 (permalink)
Randy G.
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Re: poor mileage 86 740 gle

"pepe256" <stefanarnold@comcast.net> wrote:

>no vacuum leaks and ive used someconcentrated fuel injector cleaner still
>no improvement its not running rich or theres not any smoke comeing out of
>tailpipe really anyother things that could be wrong?
>

Have you checked the thermostat in the air cleaner to make sure that
the hot air from the heat riser is shut off during normal operating
temperatures?

Could a stuck-open cooling system themostat cause the motor to run too
cold, fooling the computer into thinking it needs a richer mixture?

Have you changed the air filter lately?

Have you checked the brakes? Could be a stuck caliper or dragging
e-brake shoe. Maybe a rusty e-brake cable

How poor is the mileage?


__ __
Randy & \ \/ /alerie's
\__/olvos
'90 245 Estate - '93 965 Estate
"Shelby" & "Kate"
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Old 09-29-2005, 18:01   #4 (permalink)
James Sweet
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Re: poor mileage 86 740 gle


> >

> Plenty, blocked or leaking exhaust or ignition timing are possible
> preliminary suspects. It has been suggested (though I haven't noticed
> myself) that with current high petrol prices and supply problems, there
> might be some adulteration. On that subject, has anyone heard of using

small
> amounts of acetone to improve engine performance?
>
>


I've heard of people doing this, apparently it boosts the octane, but it can
also break down the gasoline, as well as it's an excellent solvent and will
quickly rot out rubber and plastic components in the fuel system. I'm
sticking to plain old ordinary gasoline in my cars.


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Old 09-29-2005, 19:01   #5 (permalink)
Randy G.
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Re: poor mileage 86 740 gle

"James Sweet" <jamessweet@hotmail.com> wrote:

>
>> >

>> Plenty, blocked or leaking exhaust or ignition timing are possible
>> preliminary suspects. It has been suggested (though I haven't noticed
>> myself) that with current high petrol prices and supply problems, there
>> might be some adulteration. On that subject, has anyone heard of using

>small
>> amounts of acetone to improve engine performance?
>>
>>

>
>I've heard of people doing this, apparently it boosts the octane, but it can
>also break down the gasoline, as well as it's an excellent solvent and will
>quickly rot out rubber and plastic components in the fuel system. I'm
>sticking to plain old ordinary gasoline in my cars.
>


Risking burning a $4000 car to the ground against an octane point or
two is just bad math.

Speaking of cars and math, Redd Foxx said, "I ain't gonna crash my car
dodging no damn cat. The way I see it, a $28,000 Cadillac goes over a
28 cent cat once with nothing left over."


__ __
Randy & \ \/ /alerie's
\__/olvos
'90 245 Estate - '93 965 Estate
"Shelby" & "Kate"
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Old 09-29-2005, 19:01   #6 (permalink)
Randy G.
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Re: poor mileage 86 740 gle

"James Sweet" <jamessweet@hotmail.com> wrote:

>
>> >

>> Plenty, blocked or leaking exhaust or ignition timing are possible
>> preliminary suspects. It has been suggested (though I haven't noticed
>> myself) that with current high petrol prices and supply problems, there
>> might be some adulteration. On that subject, has anyone heard of using

>small
>> amounts of acetone to improve engine performance?
>>
>>

>
>I've heard of people doing this, apparently it boosts the octane, but it can
>also break down the gasoline, as well as it's an excellent solvent and will
>quickly rot out rubber and plastic components in the fuel system. I'm
>sticking to plain old ordinary gasoline in my cars.
>


Risking burning a $4000 car to the ground against an octane point or
two is just bad math.

Speaking of cars and math, Redd Foxx said, "I ain't gonna crash my car
dodging no damn cat. The way I see it, a $28,000 Cadillac goes over a
28 cent cat once with nothing left over."


__ __
Randy & \ \/ /alerie's
\__/olvos
'90 245 Estate - '93 965 Estate
"Shelby" & "Kate"
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Old 09-29-2005, 23:01   #7 (permalink)
jg
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Re: poor mileage 86 740 gle


"Randy G." <frcn@DESPAMMOcncnet.com> wrote in message
news:591pj1tmk2b5o6nfn6mkhfb0qhts903pvp@4ax.com...
> "James Sweet" <jamessweet@hotmail.com> wrote:
>
> >> Plenty, blocked or leaking exhaust or ignition timing are possible
> >> preliminary suspects. It has been suggested (though I haven't noticed
> >> myself) that with current high petrol prices and supply problems, there
> >> might be some adulteration. On that subject, has anyone heard of using

> >small
> >> amounts of acetone to improve engine performance?
> >>

> >I've heard of people doing this, apparently it boosts the octane, but it

can
> >also break down the gasoline, as well as it's an excellent solvent and

will
> >quickly rot out rubber and plastic components in the fuel system. I'm
> >sticking to plain old ordinary gasoline in my cars.
> >

> Risking burning a $4000 car to the ground against an octane point or
> two is just bad math.
>

Of course. I haven't tried it but wondered if anyone had without any
problems so I don't take any risks. If one could bank on nothing more than
saving fuel then it would be worth it, but not without a lot of positive
comments I'm not about to. Thanks for replies.


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Old 10-01-2005, 00:01   #8 (permalink)
badboywithbadtoyz
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Re: poor mileage 86 740 gle

check catylatic converter to see if it clogged could be part of problem

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Old 10-01-2005, 06:01   #9 (permalink)
Michael Pardee
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Re: poor mileage 86 740 gle

"badboywithbadtoyz" <badboywithbadtoyz@sbcglobal.net> wrote in message
news:8e4f98aee04059c8fc789fcf642e3c64@localhost.talkaboutautos.com...
> check catylatic converter to see if it clogged could be part of problem
>

I've had a couple of plugged cats - the most obvious symptom is that the
accelerator operates normally up to maybe half throttle, then nothing
happens when the accelerator is pushed more.

Mike


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Old 10-01-2005, 17:01   #10 (permalink)
pepe256
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Re: poor mileage 86 740 gle

i had the air filter changed abut a minth ago and the brkes also im getting
maybe 14 mpg but its not running rich hardly anysmoke form tailpipe

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